Revisiting the need for radiation output measurements after X-ray tube replacement in computed tomography.

ABSTRACT:

Purpose

State regulations require that CT radiation output be measured using a dosimeter after major service. The most common major service is tube replacement. We hypothesized that historical QC data could be used instead to determine if output measurements are necessary, potentially reducing the need for output measurements that require an on-site visit by a qualified medical physicist.

Methods

Records of 65 original equipment manufacturer (OEM) tube replacements were reviewed to determine with what frequency output was outside the manufacturer's specifications. The previous 7 days of historical quality control (QC) data prior to a tube change was used to establish a baseline mean noise level and 95% inferential confidence intervals (ICIs) about the mean. This was compared

SUBMITTER: Stauduhar PJ 

PROVIDER: S-EPMC8364279 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature